1. Department of Clinical Research University of Southern Denmark Odense Denmark
2. OPEN – Open Patient data Explorative Network Odense University Hospital Odense Denmark
3. Department of Obstetrics and Gynecology Odense University Hospital Odense Denmark
4. Division of Pharmacoepidemiology and Pharmacoeconomics Department of Medicine Brigham and Women's Hospital and Harvard Medical School Boston MA USA
5. Clinical Pharmacology Department of Public Health University of Southern Denmark Odense Denmark